TwinCabrio mechanism: The best ventilation mechanism for Cabrio greenhouses

Is your crop suitable for cultivation in a Cabrio greenhouse? Are you considering building such a greenhouse? Then the new TwinCabrio rail mechanism from Van der Valk Horti Systems is certainly worth looking at. The system is distinguished by two push-pull tubes placed one above the other and an unique patented telescopic construction. The TwinCabrio rail mechanism offers you the maximal range of ventilation possibilities and is the best ventilation mechanism for your Cabrio greenhouse.


View the brochure for more information in Dutch, English or German

TwinCabrio mechanism

Large ventilation compartments

The TwinCabrio rail mechanism has an unique construction, with the push-pull tubes (for independent operation of the two halves of the roof) installed not side by side but one above the other. In this manner the two sets of push rods (the upper and lower push-pull tube, respectively) run through each other, and the screen can freely fit against the truss. The push-pull tubes of the TwinCabrio rail mechanism have a larger diameter than ‘normal’. This makes them stronger, so larger ventilation compartments can be created with fewer motors and less wiring.

To ensure the required stability, the TwinCabrio rail mechanism incorporates the Stabimax® vent-opening mechanism and the Valk-Plus® window push rods, two important innovations from Van der Valk Horti Systems that are already being used around the world.


The Stabimax® system consists of a hinge element that with its cunning form holds the push rods in an iron grip. Plus a unique clamp that is wide enough to easily absorb the tolerances of your greenhouse and is absolutely torsion-free. The Valk-Plus® push rods are made exactly to measure to your specifications according to a new and completely automated production process. They are treated in several unique ways to make them distinctive for their functionality and ease of mounting.


A Cabrio greenhouse combines the benefits of cultivation in a greenhouse with the benefits of cultivation in the open air. But then the greenhouse roof must be able to open fully (and remain stable). Van der Valk Horti Systems developed a clever telescopic construction for the ends of the push-pull tubes. With this completely rolling construction, long lengths are possible without the push-pull tube being subject to twisting.

The TwinCabrio rail mechanism:

- Two push-pull tubes mounted one above the other

- Fewer motors and less wiring

- Completely rolling telescopic construction

- Screens possible on top tube

- Durable thanks to the use of the Stabimax® ventilation mechanism and Valk-Plus® push rods

Still have any questions? Contact us

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Van der Valk Horti Systems

Zwartendijk 73
The Netherlands

Phone +31 (0)174 - 21 22 23
Fax +31 (0)174 - 24 27 27